Tip for a marking pen



FIG. 1 is a perspective view showing the front and right side of a tip for a marking pen of my new design;

FIG. 2 is a front elevation view of FIG. 1;

FIG. 3 is a rear elevation view of FIG. 1;

FIG. 4 is a right side elevation view of FIG. 1, the left side elevation view being a mirror image thereof;

FIG. 5 is a top plan view of FIG. 1;

FIG. 6 is a bottom plan view of FIG. 1; and,

FIG. 7 is a perspective view of the tip for a marking pen of my new design placed in a marking pen. The broken lines in the drawings depict an example of a marking pen in which the tip for a marking pen of my new design is placed, and form no part of the claimed design. 

The ornamental design for a tip for a marking pen, as shown and described. 